Lighting device



FIG. 1 is a perspective view of a lighting device, illustrating the present invention;

FIG. 2 is a left side elevation view of the lighting device, illustrating the present invention;

FIG. 3 is a right side elevation view of the lighting device, illustrating the present invention;

FIG. 4 is a front view of the lighting device, illustrating the present invention;

FIG. 5 is a rear view of the lighting device, illustrating the present invention;

FIG. 6 is a top view of the lighting device, illustrating the present invention; and,

FIG. 7 is a bottom view of the lighting device, illustrating the present invention.

The broken lines in the drawings illustrate portions of the lighting device which forms no part of the claimed design. 

CLAIM The ornamental design of a lighting device, as shown and described. 